MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


RemcosRAT


Vendor detections: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed
SHA3-384 hash: 93cf8dcfa6ad42d6137c8df645b63700d0122847b3ac5850993145accb3778321ab847bb930f164050936147828d1759
SHA1 hash: d1a885f3834a122d207cada3721dc49ecfe2de92
MD5 hash: a1cda8858afe746bb1fedcdb5c5a49d4
humanhash: louisiana-uranus-sixteen-johnny
File name:20250328 PO AE_MECH_0581pdf(86KB).com
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'211'904 bytes
First seen:2025-03-28 07:55:58 UTC
Last seen:2025-04-08 08:48:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:n83Q1uUQypFpHsOzj4j85M1hUQDAxzJX455eb:8g1utwsOzj4jGM1aK4FX
TLSH T19545024E2BD64580D9FF4EB0E2B9156C43B5B25B9E23F37A068412F9CE32746A4117B3
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
464
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
20250328 PO AE_MECH_0581pdf(86KB).com
Verdict:
No threats detected
Analysis date:
2025-03-28 07:57:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ffb6f8b0-d873-4fba-a044-11e339da14ab

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.11823.20981.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e656f91af67ac4bfcc3935
Tags:
spawn sage remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Launching a process
Creating a file
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Running batch commands
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
darktortilla masquerade obfuscated obfuscated vbnet
Link:
https://www.filescan.io/uploads/67e65635f274bf2d8e26e3d0/reports/54691487-99ff-492e-ae17-a05f1eafb131/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/336e9000-dc81-4d57-8d0e-5fa79845388e
Result
Threat name:
DarkTortilla, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1650946
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Windows Binaries Write Suspicious Extensions
Sigma detected: WScript or CScript Dropper
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1650946 Sample: 20250328 PO AE_MECH_0581pdf... Startdate: 28/03/2025 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 11 other signatures 2->44 9 20250328 PO AE_MECH_0581pdf(86KB).com.exe 3 2->9         started        13 System.exe 2->13         started        15 System.exe 2->15         started        17 System.exe 2->17         started        process3 file4 36 20250328 PO AE_MEC...f(86KB).com.exe.log, ASCII 9->36 dropped 54 Writes to foreign memory regions 9->54 56 Allocates memory in foreign processes 9->56 58 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->58 60 Injects a PE file into a foreign processes 9->60 19 svchost.exe 5 4 9->19         started        signatures5 process6 file7 32 C:\ProgramData\MicroSoft Outlook\System.exe, PE32 19->32 dropped 34 C:\Users\user\AppData\Local\...\install.vbs, data 19->34 dropped 46 Contains functionality to steal Chrome passwords or cookies 19->46 48 Contains functionality to steal Firefox passwords or cookies 19->48 50 Delayed program exit found 19->50 23 wscript.exe 1 19->23         started        signatures8 process9 signatures10 52 Windows Scripting host queries suspicious COM object (likely to drop second stage) 23->52 26 cmd.exe 1 23->26         started        process11 process12 28 conhost.exe 26->28         started        30 System.exe 26->30         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed/
Threat name:
Win32.Dropper.DarkTortilla
Create hunting rule
Status:
Malicious
First seen:
2025-03-28 07:56:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
37
AV detection:
21 of 24 (87.50%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=75x2skjaw2kg7vtzyzmccv3v3lsoterd63zfijkz2xxktmak67wq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:clit discovery persistence rat
Link:
https://tria.ge/reports/250328-jstajsvqx4/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Remcos
Remcos family
Malware Config
C2 Extraction:
rency.ydns.eu:2404
wqo9.firewall-gateway.de:4045
code1.ydns.eu:9302
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/75101863-1da9-4989-aa0e-ea312aa7c44e
Unpacked files
SH256 hash:
ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed
MD5 hash:
a1cda8858afe746bb1fedcdb5c5a49d4
SHA1 hash:
d1a885f3834a122d207cada3721dc49ecfe2de92
Link:
https://www.unpac.me/results/42a4eb6f-1a82-4ba2-991d-405a708481b8/
SH256 hash:
ad7e8f7dee5c11928c39f41fa7f79165100accddb5a7bc1333d9d999635eb9db
MD5 hash:
6a2c1142bf2d18805aae9f329960e2a8
SHA1 hash:
5b4c3faa4af847ea5c91dcfd16f0c231d3c7a239
Detections:
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Link:
https://www.unpac.me/results/42a4eb6f-1a82-4ba2-991d-405a708481b8/
SH256 hash:
da4cb91d96214c7134a9e8799fdf241bd6b8103eecd4efb1b8c228ca3c8e7e91
MD5 hash:
9a06e083cd0531927dcd616b9b601ffa
SHA1 hash:
9584f7e1c8ab7be5900762abcaedf20cb92e4ae7
Link:
https://www.unpac.me/results/42a4eb6f-1a82-4ba2-991d-405a708481b8/
SH256 hash:
f52a5e61b81d351b7cf03d11dec650ef1ae67360920de8139c2d82f961e0be11
MD5 hash:
57ea940ffaf06b0c9766a62253e11eb7
SHA1 hash:
b39c382bc994da7904e4f8f124b21f0706dc0156
Link:
https://www.unpac.me/results/42a4eb6f-1a82-4ba2-991d-405a708481b8/
SH256 hash:
2cb5b8fbcd0994c8371837858c1f6dfe8e0de017e86437c7aee38d710209f10a
MD5 hash:
4f5880d558000b383fbb6efb21100997
SHA1 hash:
d2ceb9140d797b0f4db46a0a02c274e4fe89f349
Link:
https://www.unpac.me/results/42a4eb6f-1a82-4ba2-991d-405a708481b8/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ff6fa92920b6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

Executable exe ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments